Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-06-23
1996-10-29
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604195, A61M 500
Patent
active
055692036
ABSTRACT:
A safety syringe for saving cost includes: a coupling member of arrowhead shape integrally formed with the thin-disk plunger, an annular ring embedded on the plunger to allow the plunger to be slibably held in the syringe for injection use, a syringe cylinder integrally formed with a sleeve portion on a front portion of syringe cylinder, an annular depression formed at the lower portion of said sleeve portion, a hollow needle which comprising a shank portion and a needle portion, said shank portion which connected with needle portion having a bias socket, said shank portion formed integrally a downward depression in it's rear portion from middle portion of the shank portion to somewhere beyond bias socket appropriate whereby upon retraction of the plunger and the coupled needle into the syringe, the needle will be inclined to prevent a further outward protruding of the retracted needle, and said shank portion could be held in the sleeve portion.
REFERENCES:
patent: 5378240 (1995-01-01), Curie et al.
patent: 5395346 (1995-03-01), Maggioni
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